Lochie Posted January 17, 2022 Report Share Posted January 17, 2022 Gday fellow lure makers. I finished making a couple of lures a few days ago and they turned out really good. But today I had them sitting in the car and the resin went very cloudy and they had some blutches of resin, like bubbles in areas of the lure. And I was just wondering why this has happened? Did the resin over heat? Before and after pictures thanks heaps for any replies Quote Link to comment Share on other sites More sharing options...
JD_mudbug Posted January 17, 2022 Report Share Posted January 17, 2022 Hi Lochie, I take it you still haven't found a good clear coat in Australia. The cloudiness could be amine blush. If the resin is fully cured, try wiping the bait down with rubbing alcohol or warm soapy water and then pat dry to see if it helps. It can occur in cool or humid conditions or from the bait not being completely dry. You may want to heat set the paint with a hairdryer or heat gun on low. Maybe wait 1-2 days for the paint to fully dry before applying the resin. You could also need a dehumidifier. Check the preferred temp range and humidity for the resin on the package or company website. You will get more help if you tell the resin used or other details on how it is mixed, applied, rotisserie or not, etc. There might be someone on here using the same product. https://www.tackleunderground.com/community/topic/36592-epoxyd2t-issues/#comment-298961 By blutches do you mean air bubbles or thicker uneven lumps of resin? Thick uneven resin could mean it is curing before it can level out which could also be a temperature/humidity issue, rotisserie speed is too fast or too slow, the lure is flipping suddenly on the rotisserie usually at the top or bottom of the rotation, or too much resin is applied to the lure. You may also need to thin your resin a bit with a few drop of denatured alcohol. Air bubbles can be from mixing too aggressively or with something that is more likely to introduce bubbles like a wood stick. You can mix with a plastic mixing stick and quickly pass a torch over the resin to pop the bubbles after mixing. Below is a collection of posts some of which you may have already read. I threw them in here just in case. Lots of good info about clear coat issues. https://www.tackleunderground.com/community/topic/37686-tacky-epoxy-check-your-temps/ https://www.tackleunderground.com/community/topic/37532-new-guy-old-questions/ https://www.tackleunderground.com/community/topic/12510-trying-to-achieve-a-flawless-finish/ https://www.tackleunderground.com/community/topic/36877-epoxy-issues-and-lure-turner-questions/?tab=comments#comment-301056 https://www.tackleunderground.com/community/topic/38177-resin-clear-coat-problems/ Jim 2 Quote Link to comment Share on other sites More sharing options...
azsouth Posted January 18, 2022 Report Share Posted January 18, 2022 To me it looks like there is moisture under the finish coat. 2 Quote Link to comment Share on other sites More sharing options...
Lochie Posted January 19, 2022 Author Report Share Posted January 19, 2022 14 hours ago, azsouth said: To me it looks like there is moisture under the finish coat. I don’t think it would be moisture because the lures has been finished for a few days, and it has only happened to that lure and one other that was in direct sunlight I the car. Quote Link to comment Share on other sites More sharing options...
Lochie Posted January 19, 2022 Author Report Share Posted January 19, 2022 On 1/18/2022 at 4:24 AM, JD_mudbug said: Hi Lochie, I take it you still haven't found a good clear coat in Australia. The cloudiness could be amine blush. If the resin is fully cured, try wiping the bait down with rubbing alcohol or warm soapy water and then pat dry to see if it helps. It can occur in cool or humid conditions or from the bait not being completely dry. You may want to heat set the paint with a hairdryer or heat gun on low. Maybe wait 1-2 days for the paint to fully dry before applying the resin. You could also need a dehumidifier. Check the preferred temp range and humidity for the resin on the package or company website. You will get more help if you tell the resin used or other details on how it is mixed, applied, rotisserie or not, etc. There might be someone on here using the same product. https://www.tackleunderground.com/community/topic/36592-epoxyd2t-issues/#comment-298961 By blutches do you mean air bubbles or thicker uneven lumps of resin? Thick uneven resin could mean it is curing before it can level out which could also be a temperature/humidity issue, rotisserie speed is too fast or too slow, the lure is flipping suddenly on the rotisserie usually at the top or bottom of the rotation, or too much resin is applied to the lure. You may also need to thin your resin a bit with a few drop of denatured alcohol. Air bubbles can be from mixing too aggressively or with something that is more likely to introduce bubbles like a wood stick. You can mix with a plastic mixing stick and quickly pass a torch over the resin to pop the bubbles after mixing. Below is a collection of posts some of which you may have already read. I threw them in here just in case. Lots of good info about clear coat issues. https://www.tackleunderground.com/community/topic/37686-tacky-epoxy-check-your-temps/ https://www.tackleunderground.com/community/topic/37532-new-guy-old-questions/ https://www.tackleunderground.com/community/topic/12510-trying-to-achieve-a-flawless-finish/ https://www.tackleunderground.com/community/topic/36877-epoxy-issues-and-lure-turner-questions/?tab=comments#comment-301056 https://www.tackleunderground.com/community/topic/38177-resin-clear-coat-problems/ Jim By blotches of resin I mean it’s like the resin has lifted off the lure. The resin was smooth when applied. Thanks for adding these links Quote Link to comment Share on other sites More sharing options...
JD_mudbug Posted January 19, 2022 Report Share Posted January 19, 2022 The lifting sounds like something was still off-gassing. Did you use a sealer on the bait before painting? The sealer may not have dried completely but the paint on top of the sealer did. There could be moisture in the wood that escaped after the paint has dried. The moisture is trapped underneath the paint and works its way out. You may want to dry the wood in an oven before sealing. The lifting by itself could have been something on the paint like fingerprint oil that prevented the clear coat from sticking. You have the cloudiness and the lifting which most likely means a moisture issue. It has to be in the wood or from some other step along the way. Something was not completely dry before the next layer was added. In addition to drying the wood, you could hit the bait after the sealer has dried with a hairdryer and let it sit some more, and hit each layer of paint with the hairdryer too, just too make sure you are not covering something not fully dried. I get the cloudiness sometimes when I clear coat a bait on a rainy day. The key is to be lucky and have it happen on a white bait. Most resins can take a lot of heat once cured. It would have to be extreme or open flame. I don't think the heat from being in car would be enough. You can try to find out what the temperature range for the resin is. See if there is a Technical Data Sheet and Safety Data Sheet for the product. What usually happens with the heat is the moisture trapped in the wood, sealer, base coat paints, etc. get turned into vapor faster causing the lifting and cloudiness. If the resin is heated too much during application, it usually kicks off before you can apply it and is filled with air bubbles. The runaway kickoff reaction usually gives off a bad smell. I once used a torch excessively to pop the bubbles in the resin after mixing. I started to smell it and tried to finish applying it. It kicked off as I was applying it and the brush got stuck to the lure. Quote Link to comment Share on other sites More sharing options...
